They can't be countered or redirected by standard instants and activated abilities, so the only way your opponent can interact with them is with something already in play
For example, the portrayal of skeletons and most undead in artwork was prohibited by the Chinese government until 2008
(The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) Creature - Skeleton Color tag templates(None) Fang Skulkin : Target black creature gains wither until end of turn
While you can have some pretty aggressive starts with these builds of Blue-White Eerie, I also think there's something to be said about games where you get to hold down the fort with an army of gremlin tokens
It's that last deck that piques our interest the most, but Wizards has gotten so, so good at making precons lately, so we wouldn't be surprised if all four are powerful and fun contenders
K'rrik, Son of Yawgmoth The most popular black commander on EDHREC is also the most powerful